Center of roll for tapes and their spools or rollrack hubs

ABSTRACT

The device “CENTERS FOR TAPE ROLLS AND THEIR SPOOLS OR ROLLRACK HUBS” has been put forward. This innovation consists of a new shape in the structure of the center of the rolls in a way which is very similar to a triangle which will be called “Delta” and for a second preferred embodiment of the invention which is very similar to a square which will be called “Tetrahedral” and which working with a spool of an adequate shape called “For Delta Rolls” or “For Tetrahedral Rolls” as a second preferred embodiment of the invention, the sliding of the roll on the spool will be hindered and therefore avoid the problems of inconsistency in the tension of the tape in packing machines.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The invention of this patent refers to a new shape and layout of methods which make the patent called “CENTERS OF ROLLS FOR TAPES AND THEIR SPOOLS OR ROLLRACK HUBS” one of big achievements for which it was intended.

[0003] 2. Description of Related Art

[0004] The present invention is a frame which due to the form of its parts and inherent characteristics, allows a safe handling in the operation it will be used for.

[0005] Modern industrial societies are always confronted to changes in the way they consume products. They are very demanding in the packing of the products. Thus, in the process of development, the ways in which the different companies do their packing have changed as well as the way to shut the packages or boxes of diverse goods.

[0006] One of the goods man uses the most for said duty is an adhesive tape in order to fasten or seal a package or the like.

[0007] At present said roll of adhesive tape displays a circular central section which is put on a spool or a hub of the correct size for the central section of the roll, and, at the same time, it displays a calibrated clutch so that the adhesive tape stretching out from the roll gets the right tension and measure according to the characteristics of the machine.

[0008] Nevertheless, in practice, the circular central section usually slides. This may happen because the central section is too big or the structure of the spool is worn out, thus causing a loss of tension which means uneven working in the automatic devices.

[0009] Usually, this difficulty is due to the fact that whenever the roll slides around its spool; this one does not regulate the tension of the tape any more as should be done by the calibrated clutch of the spools.

[0010] In accordance with the research work done on this, the technical and bibliographical antecedents which are available to date, and in view of those negative elements in use, i.e. taped rolls and spools or hubs of a regular round shape, the decision was taken by the aforementioned applicant, to study the way to improve the technique and the structure needed in order to avoid the uneven performance of the automatic packing devices using round spool or hub as well as round centered adhesive tape.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

[0011] That is why, the present inventor developed a new structure for the central section for taped rolls and the corresponding design of the spool or hub that aims of making the procedure easier and without restrictions as to its functioning.

[0012] This new structure can be seen in the following drawings attached herewith, i.e.:

[0013]FIGS. 1 and 1b show the dismounting of the “CENTER FOR TAPE ROLLS AND THEIR SPOOL OR ROLLRACK HUB”

[0014]FIGS. 2 and 2b show an upper view of the “CENTER FOR TAPE ROLLS AND THEIR SPOOL OR ROLLRACK HUB” working as a whole.

[0015]FIGS. 3 and 3b show an upper view of the “TAPE ROLL AND THE SPOOL OR ROLLRACK HUB”

[0016]FIGS. 4 and 4b show a side view in perspective of the “SPOOL OR ROLLRACK HUB”

[0017]FIGS. 5 and 5b show an upper view of the “SPOOL OR ROLLRACK HUB”

[0018]FIGS. 6 and 6b show a perspective view of the “SPOOL OR ROLLRACK HUB”

[0019] The operation and the mechanical understanding of the “CENTERS FOR TAPE ROLLS AND THEIR SPOOL OR ROLLRACK HUBS” which combines several functions in one, will be analysed next referring to the descriptive drawings, specially FIGS. 2), 4) and 5).

DETAILED DESCRIPTION OF THE INVENTION

[0020] A spool or hub will be adapted to the tape machine in order to carry an adhesive tape.

[0021] This spool or hub was designed with a section very similar to that of a triangle which will be called: “For Delta Rolls” and for a second preferred embodiment of the invention with a section very similar to that of a square which will be called “For tetrahedral rolls”.

[0022] This spool while working with rolls with “delta-shaped” center and for a second preferred embodiment of the invention “Tetrahedral-shaped” center—as you will see further on—will stop the sliding of the rolls on the spool, therefore avoiding the problem with inconsistency in the tape tension.

[0023] The curvature of the faces of the triangular and for a second preferred embodiment of the invention square section of the spool or rollrack hub, allows the installation of a bigger calibrated clutch which results in a better control over the tension of the roll in the machine.

[0024] Said curvature of the faces of the spool is smaller than the one of the centers of the rolls in order to allow a space that enables the installation of a spring in the shape of a sheet or the like. This sheet hinders the “axial” motion on the spool or hub.

[0025] The taped roll which will be set in the spool or hub will have—in the same way as the spool or hub—a special shape similar to a triangle which will be called “Delta”, and for a second preferred embodiment of the invention a special shape similar to a square which will be called “Tetrahedral”.

[0026] Said structure has as the main feature a bigger curvature in the sides facing the sides of the spool or hub, so that there is a certain space in between them, which furnishes a space or distance in order to fit a spring with the shape of a plate or sheet. This sheet will press an upward force from the spool toward one of the “Delta” walls of the roll and for a second preferred embodiment of the invention “Tetrahedral”, thus avoiding the “axial” motion on the spool or hub.

[0027] Now, a complete description of the “CENTERS FOR TAPE ROLLS AND THEIR SPOOL OR ROLLRACK HUBS”, relative to FIGS. 2), 2 b), 4), 4 b), 5), 5 b):

[0028] We will start by the structure of the spool or rollrack hub of a section which is similar to a triangle which has its three faces 1), 2) and 3) having a curvature and for a second preferred embodiment of the invention as a square having for faces 1), 2), 3) and 4) without curvature.

[0029] Side 2) shows a structure perpendicular to the hub in the form of a flat plate (spring) 4) and a special feature of this spring is that it will contact the section which will hold the delta shape of the roll, in a curved angle. Said structure 4) in the form of a spring will be fastened to the hub of the spool with screws 7) and 8) and for a second preferred embodiment of the invention it shows a structure outwards to the hub in the form of a spring 5) and the special feature of this spring is that it will contact the section which will hold the square shape of the roll, in a curved angle. Said structure 5) in the form of a spring will be fastened to the hub of the spool with screws 7) and 8)

[0030] Between the circular empty space 12) and the 1), 2) and 3) as well as for 4) for a second preferred embodiment of the invention, there is a section which is thicker and which will allow the placement within the empty space 12) of a clutch system 6) or 9) for a second preferred embodiment of the invention, which will hold an axle 13) that will be screwed to the device for adhesive tapes.

[0031] The system is completed with a round slide 5) which will be fastened to the central part of the spool by three burr screws which in a second preferred embodiment of the invention will be shown with number 6), and which will be fastened to the central part of the spool by four burr screws.

[0032] Concerning the description of the roll 17), this one has the characteristic of having a center with three sides 14), 15) and 16) in the “Delta” or “Tetrahedral” shape for a second preferred embodiment of the invention, having as a characteristic a bigger curvature in the sides facing the sides of the spool or hub device for rolls. 

What is claimed is: 1) “CENTER FOR TAPE ROLLS AND THEIR SPOOLS OR ROLLRACK HUBS” characterized by a triangular or square center roll whose sides have a certain bend, which lends said center a “Delta” shape, and which in the second preferred embodiment of the invention will be of a “Tetrahedral” shape, and a spool or hub which is as well of a triangular or square shape for the second preferred embodiment of the invention. This spool with slightly less curved sides than the ones of the center of the roll and which in the second preferred embodiment of said invention the spools or hub will be tetrahedral. 2) “CENTERS FOR TAPE ROLLS AND THEIR SPOOLS OR ROLLRACK HUBS” which according to claim 1) is characterized by an adhesive tape that has a triangular center or a square center for the second preferred embodiment of the invention, with slightly curved sides and which is called for the sake of this patent as “Delta” shaped or “Tetrahedral” shaped in the second preferred embodiment of the invention. The second preferred embodiment of the invention will be Tetrahedral and with slightly curved sides as well. 3) “CENTERS FOR TAPE ROLLS AND THEIR SPOOLS OR ROLLRACK HUBS” which according to claims 1) and 2) is characterized by a triangular spool or a square spool in the second preferred embodiment of the invention, a rollrack hub with slightly curved called for the sake of this patent “For Delta Rolls” or “For Tetrahedral Rolls” in the second preferred embodiment of the invention both embodiments of the spools or rollrack hubs allow the coupling of the center of their respective rolls 